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Question Number 195195 by Mr.D.N. last updated on 26/Jul/23

  find the limit:    _(x→a ) ^(lim)    (x^(1/3) /x^(1/2) ) − (a^(1/3) /a^(1/2) )

$$\:\:\mathrm{find}\:\mathrm{the}\:\mathrm{limit}: \\ $$$$\:\underset{\mathrm{x}\rightarrow\mathrm{a}\:} {\overset{\mathrm{lim}} {\:}}\:\:\:\frac{\boldsymbol{\mathrm{x}}^{\frac{\mathrm{1}}{\mathrm{3}}} }{\boldsymbol{\mathrm{x}}^{\frac{\mathrm{1}}{\mathrm{2}}} }\:−\:\frac{\boldsymbol{\mathrm{a}}^{\frac{\mathrm{1}}{\mathrm{3}}} }{\boldsymbol{\mathrm{a}}^{\frac{\mathrm{1}}{\mathrm{2}}} } \\ $$

Commented by Frix last updated on 26/Jul/23

Obviously 0

$$\mathrm{Obviously}\:\mathrm{0} \\ $$

Answered by som(math1967) last updated on 27/Jul/23

 lim_(x→a)  (1/x^(1/6) ) −(1/a^(1/6) )    (1/a^(1/6) ) −(1/a^(1/6) )=0

$$\:\underset{\boldsymbol{{x}}\rightarrow\boldsymbol{{a}}} {{lim}}\:\frac{\mathrm{1}}{\boldsymbol{{x}}^{\frac{\mathrm{1}}{\mathrm{6}}} }\:−\frac{\mathrm{1}}{\boldsymbol{{a}}^{\frac{\mathrm{1}}{\mathrm{6}}} } \\ $$$$\:\:\frac{\mathrm{1}}{\boldsymbol{{a}}^{\frac{\mathrm{1}}{\mathrm{6}}} }\:−\frac{\mathrm{1}}{\boldsymbol{{a}}^{\frac{\mathrm{1}}{\mathrm{6}}} }=\mathrm{0} \\ $$

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